Revision as of 16:49, 16 December 2023

Feature: Table Partitioning Support

Goal: Technical

Developers: Hengsin, Elaine Tan

Feature Ticket: IDEMPIERE-5943

Description: Table partitioning support for PostgreSQL and Oracle

Support partition by List and Range
Support partition of new and existing table
Support moving of data and constraints from existing table to partitioned table (For PostgreSQL only)
Support auto addition of new partition through scheduled process

Not cover:

List/range partitioning for more than one partition key (Note: To implement the second partition key column as sub-partition in future enhancement)
Sub-partition

Configuration

Configure the partition information at Table and Column window

Table

Partition: Indicates this is a partitioned table
Create/update partition: Process which create or update table partitions based on the information in the table and column records

List partitioning

Range partitioning

Column

Partition Key: Indicates this is a partition key
Partition Key Sequence: Indicates the order of the partition keys where the lowest number comes first
Range Partition Interval: Indicates the interval used in a range partitioning (date or number)
- Examples of date intervals: 1 year; 6 months;
- Examples of number intervals: 5000; 100000;

List partitioning

Range Partitioning

Execution of the process

The process can be called from the Table and Column window or Menu

Table and Column window

The process can be called from the Create/update partition button on the Table and Column window.

View the table partition info

Read-only. Capture the database partition info from the database to the Table Partition table (i.e. AD_TablePartition). Each Table Partition record represents an actual database partition

Name: The name of the partition
Expression: SQL clause of the partition

Auto addition of new partition

A schedule process called Create/Update Table Partitions is created to run the Create/update partition process daily.

@@ Line 25: / Line 25: @@
 === Table ===
 *'''Partition:''' Indicates this is a partitioned table
-*'''Partitioning Method:''' Indicates how the Table is partitioned (List or Range)
-**List partitioning - The data distribution is defined by a discrete list of values
-**Range Partitioning - The data is distributed based on a range of values
 *'''Create/update partition:''' Process which create or update table partitions based on the information in the table and column records
 [[File:Table Partitioning Configuration Table.png|none|thumb|800x800px|List partitioning]]

Difference between revisions of "Table Partitioning"